Abstract
We investigated the optical properties of Ag hemisphere-like nanoparticles. The nanoparticles were prepared by using magnetron sputtering and post-thermal annealing. The scanning-electron microscopy images reveal that hemisphere-like nanoparticles were successfully produced. The transmission spectra exhibit the surface plasmon resonance effect. From the spatial intensity distributions obtained by solving Maxwell equations using the three-dimensional, finite-difference time-domain method, we found that there is strong confinement of the optical field near the nanoparticle. This optical confinement makes it easy to exhibit the plasmon resonance effect.
Original language | English |
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Pages (from-to) | 568-571 |
Number of pages | 4 |
Journal | Journal of Nanoscience and Nanotechnology |
Volume | 13 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2013 |
Keywords
- Ag nanoparticle
- FDTD
- Plasmon
- Spatial intensity distribution